Bug 2523403

Summary: CVE-2026-59647 byte-buddy: Bouncy Castle for Java: Denial of Service via unbounded iteration in CRMF/CMP password-MAC [fedora-all]
Product: [Fedora] Fedora Reporter: Jon Weiser <jweiser>
Component: byte-buddyAssignee: Marián Konček <mkoncek>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: mizdebsk, mkoncek
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["c54e58cc-6d74-40c6-894b-22bd2d48454e"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2510207    

Description Jon Weiser 2026-08-25 12:02:23 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

In Bouncy Castle for Java before 1.85, CRMF/CMP password-MAC honours unbounded iteration count. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpkix-fips 1.0.12 (1.0.X series), 2.0.12 (2.0.X series) and 2.1.12 (2.1.X series).